[marcosdumay]

Oh, you mean a rare eventuality.

Yes, you need some redundant power supply. We should probably be investing more on research about synthetic fuels than we are right now (and shelf-stable flow batteries; hydrogen won't cut it in a micro-scale, even though it's great for national grids), but for a long time everybody will still use fossil fuels for that.

It's not a huge problem right now.